Too tired tracing a screenshot of a traidtional sketch? Or just want to work with the pencil drawing digitally? Well, here drawhack!
"Refine Image" auto action will quickly edit it to a clear black & white image.
Examples of the three different settings:
Strong refine:

Medium refine:

Light refine:

**Tip**:
Best to expirment setting to find which one works.
Enjoy! :)